set-language-info
set-language-info is a compiled Lisp function in `mule-cmds.el
'.
(set-language-info LANG-ENV KEY INFO)
Modify part of the definition of language environment LANG-ENV.
Specifically, this stores the information INFO under KEY
in the definition of this language environment.
KEY is a symbol denoting the kind of information.
INFO is the value for that information.
For a list of useful values for KEY and their meanings,
see `language-info-alist'.